Nonlinear dependency of tooth movement on force system directions
نویسندگان
چکیده
منابع مشابه
Effect of Ovariectomy on Orthodontic Tooth Movement in Rats
Background and Aim: Estrogen affects the metabolism in females. This study aimed to assess the effect of absence of estrogen on orthodontic tooth movement in rats. Materials and Methods: In this animal study, 55 rats were randomly divided into four groups. Group 1 (n=10) had intact ovaries. In group 2 (n=15), ovaries were intact but the rats were subjected to stress due to tooth preparation. I...
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Objective(s): to determine the effect of different doses of caffeine on orthodontic tooth movement (OTM) in rats. Materials and Methods: Forty male 250-300 g Sprague-Dawley rats were randomly divided into four groups of ten animals each and received 0 (control), 1 g/l, 2 g/l and 3 g/l caffeine in tap water for 3 days. Orthodontic appliances were ligated between the maxillary first molars and in...
متن کاملOptimum force magnitude for orthodontic tooth movement: a mathematic model.
The aim of this study was to develop a mathematic model to describe the relationship between magnitude of applied force and rate of orthodontic tooth movement. Initially, data were extracted from experimental studies in dogs (beagles), in which controlled, standardized forces were used to move mandibular second premolars distally. Curve-fitting by nonlinear regression analysis provided an equat...
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چکیده ندارد.
15 صفحه اولTooth movement and root resorption; the effect of ovariectomy on orthodontic force application in rats.
OBJECTIVE To quantify the amount of tooth movement and orthodontically induced root resorption (OIRR) in ovariectomized rats. MATERIALS AND METHODS Five 10-week-old female Wistar rats undergoing ovariectomy (OVX) were investigated as the experimental group, and the other five without ovariectomy served as the control group. Four weeks after ovariectomy, 25-g nickel-titanium closed-coil spring...
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ژورنال
عنوان ژورنال: American Journal of Orthodontics and Dentofacial Orthopedics
سال: 2016
ISSN: 0889-5406
DOI: 10.1016/j.ajodo.2015.11.025